Specification: Battery Voltage: 14.4V; High Capacity: 2600mAh; Cycle times: ≥500 cycles; Runtime: ≥60 minutes per charge. Compatible with Part Number: CMICR18650F9M-4S1P T2996011 Compatible with Vacuum Model: Replacement for Eufy RoboVac LR20, LR30 Hybrid+, L35 Hybrid+,Bagotte BG800 BG850,Ultenic U092-INR-MH1-4S1P ,Laresar Grande 2 Sweeping,Kyvol Cybovac L20 E20 E30 E31 Robot Vacuum Cleaner Safe to Use: The battery comes with built-in over-charge, over-discharge, over-voltage, over-current, and over-heating protection. Battery life varies based on settings, usage & temperature. Lower power consumption IC Design & High capacity circulatory function, perfect replace your original batteries. Easily Install New Batteries: Just remove the two screws on the bottom, remove the battery connector and plug in the new one, and revive your robot. Compatible with Vacuum Model: Replacement for Eufy RoboVac LR20, LR30 Hybrid+, L35 Hybrid+,Bagotte BG800 BG850, Laresar Grande 2 Sweeping Robot Vacuum Cleaner